CN112554873A - Receive signal processing device of while-drilling multipole acoustic wave imaging logging instrument - Google Patents
Receive signal processing device of while-drilling multipole acoustic wave imaging logging instrument Download PDFInfo
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- CN112554873A CN112554873A CN202011323628.7A CN202011323628A CN112554873A CN 112554873 A CN112554873 A CN 112554873A CN 202011323628 A CN202011323628 A CN 202011323628A CN 112554873 A CN112554873 A CN 112554873A
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- 238000012545 processing Methods 0.000 title claims abstract description 34
- 238000005553 drilling Methods 0.000 title claims abstract description 30
- 238000003384 imaging method Methods 0.000 title claims abstract description 23
- 230000005405 multipole Effects 0.000 title claims abstract description 23
- 239000003921 oil Substances 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 47
- 230000001681 protective effect Effects 0.000 claims description 24
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 229920002545 silicone oil Polymers 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a receiving signal processing device of a multi-pole acoustic wave imaging logging instrument while drilling, which comprises a receiving transducer analog signal front discharging circuit, wherein the receiving transducer analog signal front discharging circuit is arranged in a sealed pressure-bearing structure filled with silicon oil, one end of the receiving transducer analog signal front discharging circuit is connected with a corresponding receiving transducer, and the other end of the receiving transducer analog signal front discharging circuit is electrically connected with an integrated pressure-bearing plug arranged at one end of the sealed pressure-bearing structure through a digital multiplexing control circuit. The invention adopts an integrated pressure bearing technology, can be quickly installed, simultaneously, the receiving transducer is directly installed in the installation hole position of the receiving circuit board, a signal connecting wire between the receiving transducer and the receiving circuit board is saved, and the acquired sound wave signals are directly subjected to A/D conversion after being processed, thereby effectively improving the anti-interference performance and the signal-to-noise ratio.
Description
Technical Field
The invention belongs to the technical field of oilfield service, and particularly relates to a receiving signal processing device of a while-drilling multipole acoustic imaging logging instrument.
Background
Along with the continuous expansion of the scale of oil and gas exploration and development in China, the exploration and development work of unconventional oil and gas such as shale gas is continuous and deep, and the corresponding oil field service technology is required to keep up with the exploration and development requirements. In recent years, logging-while-drilling technology, especially acoustic logging-while-drilling technology, is rapidly developed, and the multipole acoustic imaging logging-while-drilling instrument is an acoustic logging-while-drilling instrument applying the latest technology, can provide parameters such as rock mechanical properties, formation pore pressure and the like in addition to the longitudinal and transverse wave time difference parameters of formation acoustic waves for identifying overpressure formations and optimizing mud density, achieves the purposes of improving drilling operation and improving the drilling safety coefficient, and can also be used for designing a fracturing scheme. The existing acoustic wave signal receiving and processing devices while drilling are mature in two types, and the common characteristic of the acoustic wave signal receiving and processing devices while drilling is that an analog signal front-end circuit and a receiving transducer are located in two sealing devices, and the two devices need to be connected through a long cable, so that the complexity of an instrument is increased, the reliability of the instrument is reduced, and the signal-to-noise ratio of a received signal of the instrument is not improved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a receiving signal processing device of a multi-pole acoustic imaging logging-while-drilling tool aiming at the defects in the prior art, and meet the requirements of high signal-to-noise ratio and bandwidth acoustic signal acquisition of instrument signals.
The invention adopts the following technical scheme:
a receiving signal processing device of a multi-pole acoustic imaging logging instrument while drilling comprises a front discharging circuit for receiving analog signals of a transducer, wherein the front discharging circuit for receiving the analog signals of the transducer is arranged in a sealed pressure-bearing structure filled with silicone oil, one end of the front discharging circuit is connected with a corresponding receiving transducer, and the other end of the front discharging circuit is electrically connected with an integrated pressure-bearing plug arranged at one end of the sealed pressure-bearing structure through a digital multiplexing control circuit.
Specifically, the three receiving transducer analog signal front discharge circuits are sequentially connected with the digital multiplexing control circuit to form an integrated circuit structure.
Furthermore, the outside suit of integrative circuit structure is provided with heterotypic rubber and supports the protective sheath, and the outside suit of heterotypic rubber supports the protective sheath and is provided with outer safety cover of strip rubber.
Furthermore, the sealing pressure-bearing structure comprises an upper sealing pressure-bearing joint and a lower sealing pressure-bearing joint which are connected with each other, the upper sealing pressure-bearing joint is arranged in the strip-shaped rubber outer protective cover close to one end of the digital multiplexing control circuit, and the lower sealing pressure-bearing joint is arranged in the strip-shaped rubber outer protective cover close to one end of the third front discharge circuit for receiving the analog signal of the transducer.
Furthermore, the corresponding positions of the strip-shaped rubber outer protection covers are respectively fixed in the fixing grooves of the upper sealing pressure-bearing joint and the lower sealing pressure-bearing joint to form a sealing cavity.
And furthermore, the strip-shaped rubber outer protection cover is fixed with the upper sealing pressure-bearing joint and the lower sealing pressure-bearing joint through strapping tapes, and the height of the strapping tapes is less than or equal to the height of the outer surfaces of the upper sealing pressure-bearing joint and the lower sealing pressure-bearing joint.
Furthermore, the inside of abnormal shape rubber support safety cover is provided with the mounting groove that is used for installing the circuit.
Specifically, two ends of a receiving transducer mounting hole of the receiving transducer analog signal front-end amplifying circuit are respectively provided with a receiving transducer rubber support through a circuit board mounting clamping groove, and the anode of the receiving transducer is upwards arranged in the transducer clamping groove of the receiving transducer rubber support.
Furthermore, the receiving transducer rubber support is of a structure in a shape like a Chinese character hui, and the receiving transducer is arranged between the two receiving transducer rubber supports.
Specifically, the received signal processing device comprises a plurality of sets of received signal processing devices which are circumferentially arranged in a mounting groove on the drill collar at intervals of 90 degrees.
Compared with the prior art, the invention has at least the following beneficial effects:
the invention relates to a receiving signal processing device of a multi-pole acoustic wave imaging logging instrument while drilling, wherein a receiving circuit is independently arranged in a receiving electronic circuit, a receiving transducer is independently arranged on a receiving acoustic system, and the receiving circuit processes a received acoustic wave analog signal through a signal transmission line.
Furthermore, the receiving transducer is arranged on the receiving acquisition circuit board, so that a signal connecting line from the receiving transducer to a receiving front discharge circuit is omitted, the complexity of the instrument is reduced, and noise interference is reduced.
Furthermore, 12 sound wave receiving transducers and analog signal front discharge circuits thereof are simultaneously arranged in a sealed pressure-bearing structure filled with silicon oil, and the whole device is in direct contact with the well mud, so that the coupling coefficient of sound wave signals is improved, and the signal-to-noise ratio of collected signals is favorably improved.
Furthermore, the sound wave receiving signals processed by the front discharge circuit are directly subjected to A/D conversion, and digital signals are uploaded, so that the signal transmission loss is reduced, and the environmental noise interference is reduced.
Furthermore, the installation mode of the received signal processing device adopts a drawing design, which is beneficial to quick installation and disassembly.
Furthermore, the special-shaped rubber support protective sleeve is matched with the circuit board, and is provided with an installation guide groove, the circuit board is installed by adopting the 'pulling and pulling' design, the circuit board is ensured not to be twisted and rotated in the working process, and the water-filled rubber support protective sleeve can effectively reduce the physical damage of external vibration to the circuit board and the receiving transducer.
Furthermore, the transducer rubber support frame can fix the receiving transducer on the mounting hole of the receiving circuit board, and meanwhile, the receiving transducer cannot be clamped.
Furthermore, a structure in a shape like a Chinese character 'hui' is adopted, the receiving transducer is arranged between two receiving transducer rubber supports, and the combined body is arranged in a mounting hole of the transducer of the front circuit. The receiving transducer is ensured to be in a free vibration state, and meanwhile, the receiving transducer is prevented from generating transverse and longitudinal displacement and twisting in the using process.
Furthermore, the integrated pressure-bearing plug adopts an integrated pressure-bearing vulcanization processing technology, so that the damage of the formation pressure can be effectively resisted under the condition of ensuring good electrical connection, and the sealing and insulating performance of the pressure-bearing plug is ensured.
In conclusion, the invention adopts an integrated pressure bearing technology, can be quickly installed, simultaneously, the receiving transducer is directly installed in the installation hole position of the receiving circuit board, a signal connecting wire between the receiving transducer and the receiving circuit board is saved, and the collected sound wave signals are directly subjected to A/D conversion after being processed, thereby effectively improving the anti-interference performance and the signal-to-noise ratio.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic view of the installation of the present invention;
FIG. 2 is a schematic view of the assembled product of the present invention;
FIG. 3 is a schematic view of a strip-shaped rubber protective cover according to the present invention;
FIG. 4 is a schematic view of the profiled rubber support boot of the present invention;
FIG. 5 is a schematic view of a rubber mount for a transducer in accordance with the present invention;
FIG. 6 is a schematic view of an integrated pressure bearing plug of the present invention;
FIG. 7 is a schematic view of an upper sealed pressure-bearing joint of the present invention;
fig. 8 is a schematic view of a lower sealed pressure-bearing joint of the present invention.
Wherein: 1. receiving an analog signal of the transducer; 2. a digital multiplexing control circuit; 3. a strip-shaped rubber outer protective cover; 4. a special-shaped rubber supporting protective sleeve; 5. receiving a transducer rubber support; 6. an upper sealing pressure-bearing joint; 7. a lower sealed pressure-bearing joint; 8. an integrated pressure-bearing plug.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "one side", "one end", "one side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a device for processing a received signal of a multi-pole acoustic wave imaging logging instrument while drilling, which adopts 12 acoustic wave receiving transducers and analog signal front discharge circuits thereof to be simultaneously arranged in a sealed pressure-bearing structure filled with silicone oil, wherein the receiving transducers are directly arranged on an installation hole site on a receiving and collecting circuit board, each receiving transducer is provided with a low-noise analog signal conditioning circuit independently corresponding to the receiving transducer, and weak electric signals of 12 groups of acoustic wave piezoelectric receiving transducers are simultaneously processed; the received signals pass through a low-noise analog signal conditioning circuit to realize filtering and amplification of weak electric signals output by the sensor, a high-precision A/D converter is used for converting the analog signals into digital signals, and 12 paths of digital signals collected in parallel are converted into serial data after being recoded and then are sent to an upper computer.
Referring to fig. 1 and 2, the device for processing the received signal of the logging while drilling multipole acoustic imaging tool comprises a receiving transducer analog signal front-discharge circuit 1, a digital multiplexing control circuit 2, a strip rubber outer protective cover 3, a special-shaped rubber supporting protective cover 4, a receiving transducer rubber support 5, an upper sealing pressure-bearing joint 6, a lower sealing pressure-bearing joint 7 and an integrated pressure-bearing plug 8.
The receiving transducer analog signal preamplifier circuit 1 uses a high-precision A/D converter to convert the analog signal into a digital signal after the sound wave signal received by the receiving transducer is filtered and amplified.
And the digital multiplexing control circuit 2 is used for recoding the 12-path parallel acquired digital signals, converting the recoded digital signals into serial data and sending the serial data to an upper computer.
Referring to fig. 3, the strip-shaped rubber outer protection cover 3, which is designed in a flat strip shape, and the upper sealed pressure-bearing plug and the lower sealed pressure-bearing plug form a sealed pressure-bearing cavity to protect the circuit from physical damage such as vibration and pressure.
Referring to fig. 4, the special-shaped rubber supporting protective sleeve 4 is designed in a special shape, and the circuit is installed in the protective sleeve in a pulling manner, so that the circuit board is prevented from generating lateral displacement and twisting in the using process.
Referring to fig. 5, the receiving transducer rubber mount 5 is in a "return" shape, and the receiving transducer is mounted between two receiving transducer rubber mounts, and the assembly is mounted in the mounting hole of the transducer of the front-end circuit. The receiving transducer is ensured to be in a free vibration state, and meanwhile, the receiving transducer is prevented from generating transverse and longitudinal displacement and twisting in the using process.
Referring to fig. 6, the integrated pressure-bearing plug 8 and the upper sealed pressure-bearing joint 6 are connected into a whole, and the wire of the integrated pressure-bearing plug 8 penetrates out of the middle of the upper sealed pressure-bearing joint 6 and is welded into the corresponding welding hole positions of the digital multiplexing control circuit 2 according to the circuit design sequence. The pressure-bearing sealing function is achieved, and meanwhile, the electric signal is connected.
Referring to fig. 7, the upper sealing pressure-bearing joint 6 and the integrated pressure-bearing plug 8 are connected into a whole, and the lower end of the upper sealing pressure-bearing joint is connected with the strip-shaped rubber outer protective cover to form an upper end sealing structure, so that the sealing pressure-bearing function is achieved.
Referring to fig. 8, the upper end of the lower sealing pressure-bearing joint 7 is connected with the strip-shaped rubber outer protective cover to form a lower end sealing structure, so as to play a role in sealing and bearing pressure.
The digital multiplexing control circuit 2 and three identical receiving transducer analog signal front-end amplifying circuits 1 are connected into an integrated circuit structure by leads according to the sequence, one end of the digital multiplexing control circuit 2 is the upper end of the integrated circuit structure, and the tail end of the third receiving transducer analog signal front-end amplifying circuit 1 is the lower end of the integrated circuit structure; the external part of the integrated circuit structure is sleeved with a special-shaped rubber supporting protective sleeve 4, the external part of the special-shaped rubber supporting protective sleeve 4 is sleeved with a strip-shaped rubber outer protective cover 3, an upper sealing pressure-bearing joint 6 is arranged in the strip-shaped rubber outer protective cover 3 close to one end of a digital multiplexing control circuit 2, a lower sealing pressure-bearing joint 7 is arranged in the strip-shaped rubber outer protective cover 3 close to one end of a third receiving transducer analog signal front-amplifying circuit 1, an integrated pressure-bearing plug 8 and the upper sealing pressure-bearing joint 6 are connected into a whole, a lead of the integrated pressure-bearing plug 8 penetrates out from the middle of the upper sealing pressure-bearing joint 6 and is welded into corresponding welding hole sites of the digital multiplexing control circuit 2 according to the sequence of circuit design, the integrated pressure-bearing plug 8, the upper sealing pressure-bearing joint 6, the, and silicone oil is filled in the closed space.
Fixing the strip-shaped rubber outer protection cover 3 in a fixing groove of the upper sealing pressure-bearing joint 6 by using a strapping tape to form a sealed cavity, wherein the height of the strapping tape does not exceed the outer surface of the upper sealing pressure-bearing joint 6 after the fixing is finished; fixing the strip-shaped rubber outer protection cover 3 in a fixing groove of the lower sealing pressure-bearing joint 7 by using a strapping tape to form a sealed cavity, wherein the height of the strapping tape does not exceed the outer surface of the lower sealing pressure-bearing joint 7 after the fixing is finished; and a closed space is formed, and silicone oil is injected into the closed space through an oil filling port of the upper sealed pressure-bearing joint 6 and an oil outlet of the lower sealed pressure-bearing joint 7, so that no air exists in the closed space.
The inside of abnormal shape rubber support safety cover 4 is provided with the mounting groove, and the circuit is packed into abnormal shape rubber support safety cover 4 along the lower extreme of integrative structure in, and the length of abnormal shape rubber support protection cover 4 is the same with the circuit length of fuse.
Two ends of a receiving transducer mounting hole of the receiving transducer analog signal front-end circuit 1 are respectively provided with a receiving transducer rubber support 5 through a circuit board mounting clamping groove, and the anode of the receiving transducer is upwards mounted in the transducer clamping groove of the receiving transducer rubber support 5, so that the receiving transducer is ensured to be in a non-clamping state.
The receiving signal processing device for the multi-pole acoustic imaging logging-while-drilling instrument comprises four sets of receiving signal processing devices, wherein the four sets of receiving signal processing devices are arranged in a mounting groove position arranged on a drill collar at intervals of 90 degrees in a circumferential arrangement manner; each set of signal receiving and processing device comprises three receiving transducer analog signal front-end amplifying circuits 1, four receiving transducers are installed in each receiving transducer analog signal front-end amplifying circuit 1, and the receiving signal processing device for the multi-pole acoustic wave imaging logging instrument while drilling is totally provided with 12 receiving transducers. The invention can flexibly increase or decrease the number of the receiving transducer analog signal preamplifier circuits 1 according to the use requirements of actual instruments.
The invention relates to a receiving signal processing device of a multi-pole acoustic wave imaging logging instrument while drilling, which combines a receiving transducer with a front discharge circuit of the receiving transducer, directly converts an analog signal into a digital signal underground, and avoids the defects of larger signal interference, low signal-to-noise ratio and complex installation of the traditional mode that the analog signal received by the receiving transducer is uploaded to a receiving circuit through a long cable and then processed. The sealing structure filled with the silicon oil can deform along with the change of external pressure, so that the internal and external pressures of the sealing structure are balanced, and meanwhile, the silicon oil also serves as an acoustic coupling agent, so that acoustic signals can be smoothly received by the receiving transducer. .
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. The device for processing the received signal of the logging instrument for the acoustic imaging of the multi-pole while drilling is characterized by comprising a receiving transducer analog signal front-discharge circuit (1), wherein the receiving transducer analog signal front-discharge circuit (1) is arranged in a sealed pressure-bearing structure filled with silicon oil, one end of the receiving transducer front-discharge circuit is connected with a corresponding receiving transducer, and the other end of the receiving transducer front-discharge circuit is electrically connected with an integrated pressure-bearing plug (8) arranged at one end of the sealed pressure-bearing structure through a digital multiplexing control circuit (2).
2. The device for processing the received signals of the logging while drilling multipole acoustic imaging tool according to claim 1, wherein the number of the receiving transducer analog signal preamplifier circuits (1) is three, the three receiving transducer analog signal preamplifier circuits (1) are sequentially connected with the digital multiplexing control circuit (2) to form an integrated circuit structure, the receiving transducer analog signal preamplifier circuits (1) are used for converting the acoustic waves received by the transducers into digital signals, and the digital multiplexing control circuit (2) is used for recoding the digital signals and converting the recoded digital signals into serial data to be sent to an upper computer.
3. The device for processing the receiving signal of the logging while drilling multipole acoustic wave imaging logging tool as claimed in claim 2, wherein the external part of the integrated circuit structure is sleeved with a special-shaped rubber supporting and protecting sleeve (4), and the external part of the special-shaped rubber supporting and protecting sleeve (4) is sleeved with a strip-shaped rubber outer protecting cover (3).
4. The device for processing the received signal of the logging while drilling multipole acoustic imaging tool according to claim 3, wherein the sealing pressure-bearing structure comprises an upper sealing pressure-bearing joint (6) and a lower sealing pressure-bearing joint (7) which are connected with each other, the upper sealing pressure-bearing joint (6) is arranged in the strip-shaped rubber outer protective cover (3) close to one end of the digital multiplexing control circuit (2), and the lower sealing pressure-bearing joint (7) is arranged in the strip-shaped rubber outer protective cover (3) close to one end of a third receiving transducer analog signal front discharging circuit (1).
5. The device for processing the receiving signal of the logging while drilling multipole acoustic imaging tool according to claim 4, wherein the corresponding positions of the strip-shaped rubber outer protective cover (3) are respectively fixed in the fixing grooves of the upper sealing pressure-bearing joint (6) and the lower sealing pressure-bearing joint (7) to form a sealed cavity.
6. The device for processing the receiving signals of the logging while drilling multipole acoustic imaging tool according to claim 5, wherein the strip-shaped rubber outer protection cover (3) and the upper sealing pressure-bearing joint (6) and the lower sealing pressure-bearing joint (7) are fixed through strapping tapes, and the height of the strapping tapes is less than or equal to the height of the outer surfaces of the upper sealing pressure-bearing joint (6) and the lower sealing pressure-bearing joint (7).
7. The receiving signal processing device of the while-drilling multipole acoustic imaging logging tool as recited in claim 3, characterized in that the inside of the profiled rubber supporting protective cover (4) is provided with an installation groove for installing an electric circuit.
8. The device for processing the received signals of the logging-while-drilling multipole acoustic imaging tool according to claim 1, wherein two ends of a receiving transducer mounting hole of the receiving transducer analog signal front-end amplifier circuit (1) are respectively provided with a receiving transducer rubber support (5) through a circuit board mounting clamping groove, and the anode of the receiving transducer is upwards arranged in the transducer clamping groove of the receiving transducer rubber support (5).
9. The device for processing the received signals of the logging while drilling multipole acoustic imaging tool according to claim 8, wherein the receiving transducer rubber support (5) is of a Chinese character hui-shaped structure, and the receiving transducer is arranged between the two receiving transducer rubber supports (5).
10. The device for processing the received signals of the logging while drilling multipole acoustic imaging tool according to any one of claims 1 to 9, wherein the received signal processing device comprises a plurality of sets of received signal processing devices, and the plurality of sets of received signal processing devices are circumferentially arranged at intervals of 90 degrees in a mounting slot on the drill collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011323628.7A CN112554873A (en) | 2020-11-23 | 2020-11-23 | Receive signal processing device of while-drilling multipole acoustic wave imaging logging instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011323628.7A CN112554873A (en) | 2020-11-23 | 2020-11-23 | Receive signal processing device of while-drilling multipole acoustic wave imaging logging instrument |
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| Publication Number | Publication Date |
|---|---|
| CN112554873A true CN112554873A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011323628.7A Pending CN112554873A (en) | 2020-11-23 | 2020-11-23 | Receive signal processing device of while-drilling multipole acoustic wave imaging logging instrument |
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| CN (1) | CN112554873A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB752296A (en) * | 1954-08-15 | 1956-07-11 | Socony Mobil Oil Co | Mechanically coupled acoustic well logging system |
| US5283768A (en) * | 1991-06-14 | 1994-02-01 | Baker Hughes Incorporated | Borehole liquid acoustic wave transducer |
| US5678643A (en) * | 1995-10-18 | 1997-10-21 | Halliburton Energy Services, Inc. | Acoustic logging while drilling tool to determine bed boundaries |
| US20090005991A1 (en) * | 2005-09-23 | 2009-01-01 | Brian Hurst | Method for Initializing Receiver Channels in a Cement Bond Logging Tool |
| US20100000311A1 (en) * | 2008-07-04 | 2010-01-07 | Schlumberger Technology Corporation | Transducer assemblies for downhole tools |
| US20120186335A1 (en) * | 2011-01-24 | 2012-07-26 | Pace Nicholas G | Imaging subsurface formations while wellbore drilling using beam steering for improved image resolution |
| US20150293251A1 (en) * | 2014-04-15 | 2015-10-15 | Schlumberger Technology Corporation | Apparatus for Monopole and Multipole Sonic Logging of A Downhole Formation |
| CN106640055A (en) * | 2016-11-21 | 2017-05-10 | 中国科学院地质与地球物理研究所 | Receiving device suitable for while-drilling orientation acoustic logging |
| CN107558993A (en) * | 2017-09-08 | 2018-01-09 | 中国科学院地质与地球物理研究所 | Integration is with brill acoustic receiver transducer package |
| US20180142551A1 (en) * | 2016-11-21 | 2018-05-24 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Azimuthally acoustic while drilling signal receiving transducer encapsulating apparatus |
-
2020
- 2020-11-23 CN CN202011323628.7A patent/CN112554873A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB752296A (en) * | 1954-08-15 | 1956-07-11 | Socony Mobil Oil Co | Mechanically coupled acoustic well logging system |
| US5283768A (en) * | 1991-06-14 | 1994-02-01 | Baker Hughes Incorporated | Borehole liquid acoustic wave transducer |
| US5678643A (en) * | 1995-10-18 | 1997-10-21 | Halliburton Energy Services, Inc. | Acoustic logging while drilling tool to determine bed boundaries |
| US20090005991A1 (en) * | 2005-09-23 | 2009-01-01 | Brian Hurst | Method for Initializing Receiver Channels in a Cement Bond Logging Tool |
| US20100000311A1 (en) * | 2008-07-04 | 2010-01-07 | Schlumberger Technology Corporation | Transducer assemblies for downhole tools |
| US20120186335A1 (en) * | 2011-01-24 | 2012-07-26 | Pace Nicholas G | Imaging subsurface formations while wellbore drilling using beam steering for improved image resolution |
| US20150293251A1 (en) * | 2014-04-15 | 2015-10-15 | Schlumberger Technology Corporation | Apparatus for Monopole and Multipole Sonic Logging of A Downhole Formation |
| CN106640055A (en) * | 2016-11-21 | 2017-05-10 | 中国科学院地质与地球物理研究所 | Receiving device suitable for while-drilling orientation acoustic logging |
| US20180142551A1 (en) * | 2016-11-21 | 2018-05-24 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Azimuthally acoustic while drilling signal receiving transducer encapsulating apparatus |
| CN107558993A (en) * | 2017-09-08 | 2018-01-09 | 中国科学院地质与地球物理研究所 | Integration is with brill acoustic receiver transducer package |
Non-Patent Citations (1)
| Title |
|---|
| 孙晓光 等: "油井参数声传输及井下发射控制", 青岛海洋大学学报(自然科学版), no. 04, 31 December 1999 (1999-12-31), pages 675 - 679 * |
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